Oracle Oracle Certifications 1Z0-858 Questions & Answers

• Question 111:

  You are creating a library of custom tags that mimic the HTML form tags. When the user submits a form that fails validation, the JSP form is forwarded back to the user. The tag must support the ability to re-populate the form field with the request parameters from the user's last request. For example, if the user entered "Samantha" in the text field called firstName, then the form is re- populated like this:

  Which tag handler method will accomplish this goal?

  A. public int doStartTag() throws JspException {JspContext ctx = getJspContext();String value = ctx.getParameter(this.name);if ( value == null ) value = "";JspWriter out = pageContext.getOut();try {out.write(String.format(INPUT, this.name, value));} (Exception e) { throw new JspException(e); } return SKIP_BODY;}private static String INPUT= "";

  B. public void doTag() throws JspException {JspContext ctx = getJspContext();String value = ctx.getParameter(this.name);if ( value == null ) value = "";JspWriter out = pageContext.getOut();try {out.write(String.format(INPUT, this.name, value));} (Exception e) { throw new JspException(e); }} private static String INPUT= "";

  C. public int doStartTag() throws JspException {ServletRequet request = pageContext.getRequest();String value = request.getParameter(this.name);if ( value == null ) value = "";JspWriter out = pageContext.getOut();try {out.write (String.format(INPUT, this.name, value));} (Exception e) { throw new JspException(e); }return SKIP_BODY;}private static String INPUT= "";

  D. public void doTag() throws JspException { ServletRequet request = pageContext.getRequest();String value = request.getParameter(this.name);if ( value == null ) value = "";JspWriter out = pageContext.getOut();try {out.write(String.format (INPUT, this.name, value));} (Exception e) { throw new JspException(e); }}private static String INPUT= "";

  Correct Answer: C

• Question 112:

  Which two directives are applicable only to tag files? (Choose two.)

  A. tag

  B. page

  C. taglib

  D. include

  E. variable

  Correct Answer: AE

• Question 113:

  The tl:taskList and tl:task tags output a set of tasks to the response and are used as follows:

  11.

  12.

  13.

  14.

  15.

  The tl:task tag supplies information about a single task while the tl:taskList tag does the final output. The tag handler for tl:taskList is TaskListTag. The tag handler for tl:task is TaskTag. Both tag handlers extend BodyTagSupport. Which allows the tl:taskList tag to get the task names from its nested tl:task children?

  A. It is impossible for a tag handler that extends BodyTagSupport to communicate with its parent and child tags.

  B. In the TaskListTag.doStartTag method, call super.getChildTags() and iterate through the results. Cast each result to a TaskTag and call getName().

  C. In the TaskListTag.doStartTag method, call getChildTags() on the PageContext and iterate through the results. Cast each result to a TaskTag and call getName().

  D. Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return BodyTag.EVAL_BODY_BUFFERED. In the TaskTag.doStartTag method, call super.getParent(), cast it to a TaskListTag, and call addTaskName().

  E. Create an addTaskName method in TaskListTag. Have the TaskListTag.doStartTag method, return BodyTag.EVAL_BODY_BUFFERED. In the TaskTag.doStartTag method, call findAncestorWithClass() on the PageContext, passing TaskListTag as the class to find. Cast the result to TaskListTag and call addTaskName().

  Correct Answer: D

• Question 114:

  Click the Exhibit button.

  Given:

  10.

  11.

  Product Name:
  

  12.

  Product Price:
  

  13.

  For a given product instance, which three jsp:setProperty attributes must be used to initialize its properties from the HTML form? (Choose three.)

  

  A. id

  B. name

  C. type

  D. param

  E. property

  F. reqParam

  G. attribute

  Correct Answer: BDE

• Question 115:

  Given:

  1.

  package com.example;

  2.

  3.

  public abstract class AbstractItem {

  4.

  private String name; ...

  13. }

  Assume a concrete class com.example.ConcreteItem extends com.example.AbstractItem. A servlet sets a session-scoped attribute called "item" that is an instance of com.example.ConcreteItem and then forwards to a JSP page.

  Which two are valid standard action invocations that expose a scripting variable to the JSP page? (Choose two.)

  A.

  B.

  C.

  D.

  Correct Answer: BC

• Question 116:

  Your web application views all have the same header, which includes the